Space heating rubbish incinerator with agitating means



July 18, 1950 DAVIDSON SPACE HEATING RUBBISH INCINERATOR WITH AGITATING MEANS Filed Dec. 23, 1944 Patented July 18, 1950 UNITED STATES. PATENT F TF Q SPACE HEATING: RUBBISH INCINERATOR WITH AGITA TING MEANS Louis Davidson, New York, N. I. 7 Application December 23, 1944, Serial No. 569,602

This invention relates to a space heating unit and incinerator and it consists in the constructions, arrangements and combinations herein described and claimed.

It is a particular object of the invention to provide a space heating unit and incinerator which is adapted for use in a fire-place of a home, of a construction enabling the burning of leaves, paper and other burnable waste products, the heat developed thereby passing outwardly into the room for heating thereof.

It is also an object of the invention to provide a space heating unit in which the fuel may be very readily inserted within the unit and securely packed, as well as providing means within the unit, at vertically spaced points, for agitating the fuel to admit air to effect an eflicient burning thereof, as well as avoiding the creation of smoke.

It is a still further object of the invention to provide a construction permitting very economical manufacture while still maintaining a unit of sturdy construction, of light weight, enabling ready portability when required.

Additional objects, advantages and features of invention will be apparent from the following description considered in conjunction with the accompanying drawing, wherein Figure 1 is a top plan view of theunit, with a portion of the top cover broken away.

Figure 2 is a cross section on the line '2---2 of Figure 1.

Figure 3 is a cross section on the line 3-4 of Figure 1.

Figure 4 is a top plan view of a modified form of heating unit with the cover removed.

Figure 5 is a similar View of another form of the device.

Figure 6 is an enlarged detail of the agitator device.

Figure 7 is a schematic view of one of the agitator arms showing the formation of air pockets within the fuel.

There is illustrated a space heating unit and incinerator In, of substantially rectangular form, consisting of a base II, side walls I2 and end walls I3. Any approved means for connecting the walls and base may be employed and preferably the unit is supported by legs I4 so as to space the base II a distance above the hearth of a fireplace. A closure cover I5 is removably supported upon the upper edges of the walls I2 and I3. The base, walls and the cover of the unit are formed from expanded metal, wire mesh, sheet metal, punched sheet metal, or a combination of these, the perforations I6 permitting circulation 1 Claim. (01. 126-225) 2 of air within the unit, or ventilation can be accomplished by leaving a gap at spaced points at the juncture of the base and vertical wallsas shown, at I6 inFigure 4, and heat'conveyed through the thin walls, by conduction.

At a point centrally of the base, a support bear ing I1 is provided, the cover I5 being formed with a similarly located opening which may be rein-1 forced by a collar I8, and oscillatable. withinthe bearing and the collar there is ashaft [9 which extends above the collar a distance for operative connection of an actuating lever 20. To further support the shaft I9, a strap bar 2I is secured between a pair of walls, positioned adjacent the upper end of the unit, the bar being apertured to permit passage ofthe shaft therethrough and through the cover.

The shaft I9 is formed with a plurality of vertically spaced transverse openings in each of which there is secured an arm 22--22'. The openings are formed alternately at right angles to each other and the arms will be correspondingly disposed. Inasmuch as the unit is of rectangular shape, the arms 22' are of a length less than the arms 22, but in each instance, the arms stop short of respective side and end walls.

As may be seen in Figure 6, the bearing I1 is formed with an inclined cam face 23 and the lower end of the shaft I9 is formed with a similarly shaped face 24, these faces being complemental to each other, so that upon oscillation of the lever 20 a slight upward movement is imparted to the shaft, and since the arms 22-22 are secured to the shaft, a vertical displacement of fuel is efiected, thus creating air pockets within the fuel, in and around said arms through their lengths.

The handle 20 is of considerable length, enabling oscillation of the agitator from a suitable distance from the heating unit, so that the operator need not come into close proximity thereto.

In Figure 4, the shaft I9 is shown as mounted centrally adjacent one of the side walls I2, and with this construction, the arms 22-22 are radially disposed from one side of the circumference of the shaft.

In Figure 5, the bearing I1 is located centrally but in spaced relation to an end wall I3, requiring the arms 22 to be of different lengths.

In use, leaves, newspapers and other burnable material is tightly packed in the heating unit through the open top of the device, after which the closure cover is placed upon the unit and the material ignited by placing a lighted match through openings I6 at several points, preferably throughout the height of the unit, thus releasing air for circulation, and enabling complete combustion of the fuel, and eliminating liability of in the walls of the housing, an open-ended bearing fixed in the bottom wall, said bearing having an inclined camface in the base thereof, a shaft journalled in the bearing and the removable cover,'means for oscillating the shaft, said shaft having an 'end face complemental to the cam face'of the .be'aring'whereby to impart an up and 4 down motion to the shaft under oscillation of the shaft, and said shaft having a plurality of vertically spaced arms extended alternately in right angular relation to the shaft.

LOUIS DAVIDSON.

REFERENCES CITED .The, following references areof record in the fileof this-patent: 4

UNITED STATES PATENTS "Number Name Date 134,415. 1 Atkiss Dec. 31, 1872 $14,931 v Werner Nov. 12, 1889 435,184 Manser Aug. 26, 1890 "614,180 Robertson Nov. 15, 1898 "739,283 Bonney Sept. 22, 1903 1,147,189 Rue July 20, 1915 1,181,973 Tyson May 2, 1916 1,259,457 Judson, et a1. Mar. 12, 1918 11,279,;033 :Stollberg Sept. 17, 1918 1,503,737 Woodward Aug. 5, 1924 1,885,685 =Cole l. Dec. 8, 1931 1,866,661 Marx v July 12, 1932 1338, 013 Folsom et al. Dec. 5, 1933 FOREIGN PATENTS Number; 4 Country Date 37,13}? Switzerland Apr. 1, 1921 221 050 ,..Great Britain Sept. '4, 1924 

